Hyperpigmentation can be one of the most frustrating skin concerns to address. Repeatedly I have seen clients work on their hyperpigmentation for months, even years only to have it undone by a accidental day of sun exposure.
Sun damage, hormonal changes and inflammation are most common causes of hyperpigmentation. Though any skin color may be affected, generally Fitzgerald Skin Types IV, V, and V (darker skin colors) are more prone to it.
Sun exposure stimulates the production of melanin, the pigment responsible for the color of the eyes, skin and hair. Excessive exposure can cause Solar Lentigines, or small patches of hyperpigmentation to appear on the face, hands or other areas most exposed to the sun. They are randomly placed with different shapes and lighter borders. Melasma, on the other hand, occurs as a result of hormonal changes such as from pregnancy or birth control pills. These darkened areas are larger, most often symmetrical and with defined borders. PIH or Post Inflammatory Hyperpigmentation occurs after acne blemishes.